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Texas Plumbing Tradesman Exam > Tradesmen > Flashcards

Tradesmen Flashcards

(106 cards)

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1
Q

Is an elevation mark on a vacuum breaker setting the minimum elevation at the device that can be installed above the flood level rim of a fixture

A

Critical Level

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2
Q

Is an actual or potential tie between potable water and any source of pollution or contamination

A

Cross connection

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3
Q

A measurement of piping taken along the centerline of pipe and fittings

A

Developed length

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4
Q

Any pipe that conveys wastewater in the drainage system

A

Drain

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5
Q

The upper rim of a fixture where water will overflow

A

Flood level rim

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6
Q

Is a wastepipe that drains through an air gap to the drainage system

A

Indirect waste

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7
Q

A pipe installed to vent one fixture trap. It may connect to the vent system above the fixture or terminate in the open air.

A

Individual vent

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8
Q

Is the primary or principal pipe to which branches are connected

A

Main

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9
Q

Is the vertical distance between the opening of the water supply and the flood level rim of a receptacle

A

Air gap

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10
Q

Any part of the piping system except mains, stacks, and risers

A

Branch

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11
Q

A vent connecting individual vents with a stack or vent stack

A

Branch vent

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12
Q

Is the lowest part of the drainage system which receives waste from soil and waste pipes and connects to the building

A

Building drain

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13
Q

Is a drainage piping that conveys waste from the building drain to the public sewer or disposal system

A

Building sewer

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14
Q

Access opening in the drainage system used to remove obstructions

A

Clean out

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15
Q

Two or three compartment sink drained by a continuous waste connected to one trap

A

Combination fixtures

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16
Q

Is horizontal wet venting system for a sink and floor drains

A

Combination waste and venting system

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17
Q

This is water that is sufficiently free of impurities to meet public health standards

A

Potable water

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18
Q

Is a drainpipe conveying sewage containing fecal matter

A

Soil pipe

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19
Q

Is the extension of a soil or waste stack above the highest fixture served

A

Stack vent

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20
Q

Is a device that provides a water seal to prevent the passage of sewer gas and allow the passage of waste

A

Trap

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21
Q

Distance from the weir to the top of the dip of the trap

A

Trap seal

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22
Q

Is a backflow preventer that allows air to vacuum being pulled in a system

A

Vacuum breaker

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23
Q

A vertical vent pipe to provide circulation of air to and from the drainage system

A

Vent stack

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24
Q

Pipe that makes an angle of 45 degrees or more with the horizontal

A

Vertical pipe

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25
Manufactures ________ must be on each _______ of pipe and each fitting, _____, fixtures, and device.
Identification, length, trap.
26
Pipes shall be ________ from breakage when passing under or through walls.
Protected
27
Copper must be supported horizontally- how many feet? On a small pipe?
6 feet or closer
28
Copper must be supported horizontally- how many feet? On 1 1/2” or larger?
10 feet
29
The drainage pipe shall be tested with a ___ ____ ____ or ___ at __ PSI
10 foot head of water or air at 5 PSI
30
Plumbing _______ must be made of approved, smooth, impervious material.
Fixtures
31
Water closets shall be set no closer than ____ inches center to center or ____ inches from a side wall.
30, 15
32
Water closets screws and bolts shall be _____
brass
33
Joints where fixtures contact walls and floors shall be sealed _____.
watertight
34
Overflows, if on a fixture must drain to the ______ (fixture) side of a trap.
inlet
35
Access must be provided to concealed ____-_____ connections.
slip-joint
36
Water closet tanks shall consume no more than _____ gallons per flush and have an ___-_____ ball cock with a refill tube to refill the _____ _____.
1.6, anti-siphon, trap seal
37
__-inch by __-inch water closet bend is acceptable.
4, 3
38
The shower must be at least ___ inches inside dimensions.
30
39
The water supply shall be a minimum of _\_ inch and have a pressure of no more than __ PSI.
3/4, 80
40
Water hammers caused by high velocity, quick-closing valves, air tanks, and pumps shall be controlled by ______ ________ ________.
water hammer arrestors
41
Copper water service pipe must be a minimum of type ___.
M
42
All pipes must be _______ to the full inside ________ of the pipe to prevent __________.
reamed, diameter, turbulence
43
Pipe joint compound shall be applied to _____ threads only.
male
44
Joints in PVC are made with solvent _______ and ______ primer.
cement, purple
45
The water supply shutoff valve must be installed on the ______ to each fixture.
supply
46
Cross connections must have ____ ______ or protective devices installed.
air gaps
47
Minimum _/_ inch per fall on all _ _/_ inches or smaller pipe.
1/4, 2 1/2
48
Hub and spigot joints in cast iron are made with ______ or _____ and lead (_______ ______).
oakum, hemp, caulked joint
49
Cast iron to plastic pipe joints shall be made by _______ or __________ compression joints.
caulked, mechanical
50
Drilled, tapped, or ______-type joints are ________.
saddle, prohibited
51
Cleanout plugs shall be made of _____ or _______.
brass, plastic
52
A clearance of no less than ____ inches must be provided for rodding on 6-inch cleanouts and smaller.
18
53
Water closets must use a maximum of ____ gal/flush
1.6
54
Change of direction from vertical to horizontal must be made by _____ ______ fitting.
long turn
55
Trap seals shall be protected from _____ ______ and _______ by vents and pressure the same as the outside air.
back pressure, siphonage
56
_______ shall be used to seal the _____ watertight where it passes through the _____.
Flashing, vent, roof
57
Vents shall terminate at least ___ feet horizontally or __ feet above all openable doors and windows.
10, 2
58
Vents shall be graded back to the drainage _____ at the fixture it serves.
pipe
59
Vents must rise vertically to _ inches above the flood level rim of the _____ fixture served before turning ____.
6, highest, hotizontal
60
Vents must be connected ______ the center line of the _______ pipe.
above, horizontal
61
Distance from _____ to _____ is set by charts (trap arms).
trap, vent
62
Trap arms cannot fall more than ___ pipe diameter (connect with san-tee, not wye or comb)
one
63
A fixture _____ shall connect above the weir of the fixture trap.
vent
64
_____ _____ are prohibited.
Crown Vents
65
Vents must not be installed within ___ pipes diameters of the trap weir.
2
66
A ____ vent is also a waste. (Only allowed on the _____ on the same floor).
wet, fixtures
67
The minimum size vent by the table is _ _/_ inches. The size is determined by the fixture _____ being vented and developed length. The ____ the vent the longer it can be.
1 1/4, units, larger
68
Each fixture must be trapped with a ______ trap located as close as possible to the ______ outlet.
separate, fixture
69
The ______ distance cannot be over __ inches from the outlet of the fixture to the ____ weir.
vertical, 24, trap
70
No double _______. (No house trap)
trapping
71
Traps must be self-_____.
scouring
72
No crown-vented traps, ____ traps, drum traps, or _-traps.
bell, s
73
Trap seals _ inches to _ inch. Less will evaporate and a deeper seal causes too little _____.
2, 4, velocity
74
Traps that may ________ need a trap _____ to keep the seal full.
evaporate, primer
75
Air provided to replace exhausted air.
Air makeup
76
A change involving extension, addition, or change to the arrangement, type, or purpose of installation.
Alteration
77
Heat required to raise 1 pound of water at 1 degree F (British thermal units)
BTU
78
The minimum distance through air measured between a heated surface and a combustible material.
Clearance
79
Appliance that derives combustion air directly from the outside and discharges all flue gases to the outside.
Direct Vent Appliance
80
Low point in the system to collect condensate and allow for removal.
Drip leg
81
Natural, liquefied petroleum, manufactured gas or a mixture of these.
Fuel Gas
82
Burners, burner igniters, or electrical switches capable of igniting flammable vapor.
Ignition source
83
Propane propylene, butanes, or butylene’s or mixtures of these that are gas at normal pressure but liquid under moderate pressure.
LP Gas
84
A gas-tight joint obtained by mechanically tightening to metal surfaces, including flanged flared, thread compression joint.
Mechanical joint
85
A pipe or conduit for conveying combustion products and air to the atmosphere.
Vent
86
Test with _____ or inert gas, never oxygen.
Air
87
Before acceptance and operation, all piping shall be ________, and ________ tested.
inspected, pressure
88
All ______ shall be left exposed for testing.
joints
89
Test for not less than __ minutes at _ _/_ times the maximum working pressure but not less than 3 P.
10, 1 1/2
90
There shall be a shut off valve no further than _ feet from each appliance and shall be readily _________ in the same room.
6, accessible
91
If the system serves more than one building, a ______ shall be installed outside of each building.
shutoff
92
Minimum support spacing for 1/2 inch pipe?
6 feet
93
Minimum support spacing 3/4” or 1” pipe
8 feet
94
Minimum support spacing for 1 1/4” or larger horizontal?
10 feet
95
Minimum support spacing for 1 1/4” or larger vertical?
Every floor level
96
Vents must rise a minimum of _ feet vertically and _ feet above any part of the building within _ feet.
5, 2, 10
97
Vents must terminate with an approved ___ that is installed to meet manufacturers instructions.
cap
98
Temperature and pressure relief valves are installed to ______ excessive temperature and pressure to prevent an explosion.
prevent
99
Temperature and pressure relief valves must be within the top _ inches of the tank.
6
100
_____ valves are required on all water heaters (gas and electric)
Relief
101
Maximum temperature of _____ (on the valve)
210
102
T & P discharge piping must be _____ for hot water with _____ or _____ piping?
Rated, copper, cpvc
103
T&P discharge piping must terminate _” above grade.
6
104
Must fall to the ______ of the building. (Not a pan)
outside
105
Not trapped (down hill)
T & P discharge piping
106
T & P discharge piping must be full size?
3/4”

Texas Plumbing Tradesman Exam (1 decks)

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